{"answers":{"affected":"3 open source packages ship an affected version, including github.com/fission/fission.","exploited":"There is no known exploitation of CVE-2026-49821 in the wild and no public exploit code.","fix":"Upgrade github.com/fission/fission to 1.24.0 or later.","what":"CVE-2026-49821 is a high-severity missing authorization vulnerability in fission, published on 10 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-49821 and fix it if it is affected.\n\nWhat it is: CVE-2026-49821 is a high-severity missing authorization vulnerability in fission, published on 10 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-49821 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/fission/fission (Go): affected all versions; fixed in 1.24.0\n- github.com/fission/fission (Go): affected all versions; fixed in 1.24.0\n- github.com/fission/fission (Go): affected all versions; fixed in 1.24.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-49821/ (Markdown: https://insights.sbomify.com/CVE-2026-49821/index.md)","id":"CVE-2026-49821","markdown":"https://insights.sbomify.com/CVE-2026-49821/index.md","name":"CVE-2026-49821","record":{"aliases":["GHSA-vjhc-cf4p-72q4","GO-2026-5859"],"analysis":{"component_type":"cloud_service","fix_type":"upgrade","impacts":["code_execution","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Kubernetes serverless framework","requires_auth":"low_privilege","summary":"Attackers can execute commands and steal service account tokens by referencing environments across namespaces in Fission packages.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.7,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"},{"id":"CWE-441","name":"Unintended Proxy or Intermediary"}],"description":"Fission is an open-source, Kubernetes-native serverless framework that simplifies the deployment of functions and applications on Kubernetes. Prior to version 1.24.0, Fission's buildermgr controller processed Package CRDs without verifying that Package.spec.environment.namespace matched Package.metadata.namespace. This issue has been patched in version 1.24.0.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Fission: Cross-namespace Environment reference in Package allows build-time command execution and SA token exfiltration","id":"CVE-2026-49821","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Fission: Cross-namespace event leakage via KubernetesWatchTrigger allows persistent tenant surveillance","id":"CVE-2026-49822"},"packages":[{"ecosystem":"Go","fixed":["1.24.0"],"introduced":["0"],"last_affected":[],"package":"github.com/fission/fission","purl":null,"source":"GHSA-vjhc-cf4p-72q4"},{"ecosystem":"Go","fixed":["1.24.0"],"introduced":["0"],"last_affected":[],"package":"github.com/fission/fission","purl":"pkg:golang/github.com/fission/fission","source":"GHSA-vjhc-cf4p-72q4"},{"ecosystem":"Go","fixed":["1.24.0"],"introduced":["0"],"last_affected":[],"package":"github.com/fission/fission","purl":"pkg:golang/github.com/fission/fission","source":"GO-2026-5859"}],"prev":{"headline":"Probo has an open redirect bypass via path normalization","id":"CVE-2026-49820"},"products":["fission"],"published":"2026-06-10","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-06-10","vendors":["fission"]},"summary":"Attackers can execute commands and steal service account tokens by referencing environments across namespaces in Fission packages.","url":"https://insights.sbomify.com/CVE-2026-49821/"}